[Research progress of studies on chemical constituents and biologic activities of Anemone species].

Anemone is an important genus which was distributed widely and used to folk medicines in China. It is rich of pentacyclic triterpenoid saponins,and more than 100 kinds of pentacyclic triterpenoid saponins had been isolated and identified. Anemone has been used to treat punch injury and rheumatoid arthritis.

[Apply fourier transform infrared spectra coupled with two-dimensional correlation analysis to study the evolution of humic acids during composting].

The composition and structure of humic acids formed during composting play an important influence on the quality and mature of compost. In order to explore the composition and evolution mechanism, municipal solid wastes were collected to compost and humic and fulvic acids were obtained from these composted municipal solid wastes. Furthermore, fourier transform infrared spectra and two-dimensional correlation analysis were applied to study the composition and transformation of humic and fulvic acids during composting.

[Influence of organic matter evolution during composting on the bioavailability of heavy metals].

Ion chromatography, fluorescence spectroscopy, UV-visible absorption spectroscopy and multivariate statistical analysis were applied to study the composition and evolution characteristics of dissolved organic matter (DOM) and heavy metal extracted from chicken manure during composting, and the influence of organic matter evolution on the bioavailability of these heavy metals was further investigated. The result showed that, a large number of organic acids were generated during the active stage, and their concentrations were in the range of 2097.55-2155.